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Grouper HA scenarios

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  • From: Niels van Dijk <>
  • To:
  • Cc: Marieke de Wit <>, Hans Zandbelt <>
  • Subject: Grouper HA scenarios
  • Date: Thu, 18 Jun 2009 16:36:42 +0200
  • Organization: SURFnet

Hi All,

We are currently exploring scenarios for setting up Grouper in a high
available, failover setup.

For the MySQL database, we plan on implementing a standard master-slave
configuration using two mysql servers.

For Groupers gui and webservices, the only requirement seems to be that
sticky sessions need to be handled. Therefore several options seem to exist:
1) Clustering setup in Tomcat, as described here:
2) Use apache mod proxy in front of tomcat to handle the clustering,
with sticky sessions enabled, like eg described here
(of course using java sessionid, not php sessionid)
3) use a loadbalancer to handle the sticky sessions and just use two
separate tomcat instances. Pound ( or a
hardware LB could handle this.

Did anyone set up grouper in such a way? What solution did you choose?
And what are your experiences with that solution?

thanks in advance,


Niels van Dijk
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